Manager Jason Lee said: “They all came to us at the start of our pre-season work. And we have decided to keep them. Whether they are ready for first team action remains to be seen.

“But they are all hungry to achieve things, have shown the right desire and want to work with good players.

“At 18, Travis is another young centre half; Joe is an exciting raw talent; and Jason had good attributes as a wide player. We have decided that all three will be part of our squad going forward. It means we now have good numbers but it doesn’t mean we have stopped looking.

“Ideally it would be nice to bring in two more bodies. And, in fact we hope to tie up a deal to bring in a loan player later this week, which would be another boost for us.”